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MIC28303 - 50V 3A Power Module

General Description

Micrel’s MIC28303 is synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture.

The module incorporates a DC/DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor and an inductor in a single package.

Key Features

  • These include undervoltage lockout, internal soft-start, foldback current limit, “hiccup” mode short-circuit protection, and thermal shutdown. Datasheets and support documentation are available on Micrel’s website at: www. micrel. com. Features.
  • Easy to use.
  • Stable with low-ESR ceramic output capacitor.
  • No compensation and no inductor to choose.
  • 4.5V to 50V input voltage.
  • Single-supply operation.
  • Power Good (PG) output.
  • Low radiated.

📥 Download Datasheet

Datasheet Details

Part number MIC28303
Manufacturer Micrel Semiconductor
File Size 2.61 MB
Description 50V 3A Power Module
Datasheet download datasheet MIC28303 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MIC28303 50V 3A Power Module Hyper Speed Control™ Family General Description Micrel’s MIC28303 is synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture. The module incorporates a DC/DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor and an inductor in a single package. The MIC28303 operates over an input supply range from 4.5V to 50V and can be used to supply up to 3A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 200kHz to 600kHz. The MIC28303-1 uses Micrel’s HyperLight Load® architecture for improved efficiency at light loads. The MIC28303-2 uses Micrel’s Hyper Speed Control™ for ultra-fast transient response.